Johnson (groin) practiced without limitations Friday, but he's still listed as questionable for Sunday's matchup with Chicago, Bryan Strickland of the Panthers' official site reports.
Johnson was a new arrival on Friday's injury report, so this latest ailment was likely sustained in practice. The veteran is listed as a starting defensive end, but he still shares snaps with Julius Peppers, especially in pass-rushing situations. Therefore, if Johnson can't go, expect both Peppers and Wes Horton to see an increase in their respective snap counts.